From 022826883f5ea68a55d197c1eda959af9f3ecc1c Mon Sep 17 00:00:00 2001
From: Simon Asika <asika32764@gmail.com>
Date: Sun, 21 Jan 2024 17:13:59 +0800
Subject: [PATCH] Must get field

---
 src/Form.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Form.php b/src/Form.php
index 0a0ca0d..4b04ed1 100644
--- a/src/Form.php
+++ b/src/Form.php
@@ -310,6 +310,12 @@ public function getField(string $namespace): ?AbstractField
         return $this->fields[$namespace] ?? null;
     }
 
+    public function mustGetField(string $namespace): AbstractField
+    {
+        return $this->getField($namespace)
+            ?? throw new \OutOfBoundsException("Field \"$namespace\" not exists.");
+    }
+
     public function hasField(string $namespace): bool
     {
         return isset($this->fields[$namespace]);